December 4th, 2010 MH Big Idea: Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them. Essential Question: How can we use percentages to compare different sets of data? 2.2 Comparing Your Class to the Nation || Activity
Males
Females
Ages 12-17
Ages 55-64
Bicycle Riding
24,562,000
23, 357,000
8,794,000
2,030,000
Camping
23,165,000
19,533,000
5,336,000
2,355,000
Exercise Walking
21,054,000
43,373,000
2,816,000
7,782,000
Fishing
30,449,000
14,885,000
4,945,000
3,156,000
Swimming
27,713,000
33,640,000
10,874,000
2,756,000
Total:
111,851,000
118,555,000
21,304,000
20,922,000
You conducted a class survey at the beginning of this investigation. Now, organize the results for bicycle riding, camping, and exercise walking, fishing, and swimming into a table similar to the one on page 17. (This is shown above.) Your table should have separate columns for males and ffemales. A.
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|| Look back at the tree statements you wrote in part B of problem 2.1 comparing the numbers of male and female participants in the various activities. Now, make the same comparisons for boys and girls in your class.
SPORT
Boys
GIRLS
SOCCER
11
4
BADMINTON
9
4
BASEBALL
10
0
DODGEBALL
6
2
SWIMMING
13
5
TOTAL
14
5
This is the class data from a class in 2009 1)80% of the girls in our class like soccer, and the percentage of boys who like soccer in our class is 78.57%. (4*100/5 & 11*100/14) 2) 26.32% of population of the class are girls and the population of the boys in our class is 73.68%. (5*100/19 & 14*100/19) 3) 94.74% of students in our class like swimming; out of this 100% of the girls enjoy swimming and 92.86% of the boys in our class like to swim.
(18*100/19; 5*100/5 & 13*100/14)
B. Compare the statements about your class data to the statements about the national data. 1.In our class data the survey proves that the population of boys in our class is 64.29% and in national survey it proves the population of the males is 48.5%. (14/19*100) and (111555000/230406000*1000) 2. In our class data the percent of girls who love to swim is 100%, and the total percentage of women who love to swim nationally is 54.83 %.( 5/5*100) and (33640000/61353000*100) 3. In our class data, out of the students playing dodge ball, we had 25% of girls and in the national data we had 32.83% of females doing fishing. (2/8*100) and (14885000/45334000*100). C. Write here statements comparing sports activities of all students in your class to those of 1. 12 to 17 year olds in the national survey 2. 55 to 64 year olds in the national survey More of the kids in my class like to bike than the 12 to 17 year olds in the nation. <------ 2008 In ages 12 to 17 10874000 people enjoyed swimming and 18 out of 19 of people in our class enjoyed this sport. <----- 2009 When we add up the total number of ages 55-64 and 12-17 the added total is 42296000 and when we add up the total in our class the total number of people is 19. <-----2009 Problem 2.2 Follow Up 1. Write a paragraph telling how your class data is like the national data and how it is different. For any ways in which your class data appears to be different from the national data, give reasons why you think your class is different. Our class data is just like the national data because they both are compared between the boys and girls. The comparison we made was as accurate as the comparison that they made for their national data. <------2009 Our class data is like the national data, because girls swim more than boys, just like the national survey and the girls also walk more than the boys like the national data. It’s different because in fishing and camping, none of the boys do that, but in the national survey, more boys do it than girls. <------ 2010 [MH’s class. ;)] 2. In your class survey, you added several activities to the five listed in the national survey. Write at least three statements comparing the numbers of boys and girls in your class who participate in these activities. 70% of boys play soccer. 2.54% girls run than boys. 50% of boys and girls play volleyball <----- 2008 In our class for the comparison statements please read the following sentences below-: · 27713000 males in the national data like to swim and 13 males in the class data is 13 · When we add up the total number of boys and girls in the national data it is 111851000 and when we add up the total number of boys and girls in our class who like to swim it will be 18. <------ 2009 Girls play basketball as an activity more than the boys a ratio of 5 to 4. 50% of the boys read as an activity, while 100% of the girls in the class read. Only 66.6% of the girls play football, while 83.3% of the play football. <-------------- 2010
MH
Big Idea: Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them.
Essential Question: How can we use percentages to compare different sets of data?
2.2 Comparing Your Class to the Nation
|| Activity
You conducted a class survey at the beginning of this investigation. Now, organize the results for bicycle riding, camping, and exercise walking, fishing, and swimming into a table similar to the one on page 17. (This is shown above.) Your table should have separate columns for males and ffemales.
A.
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Look back at the tree statements you wrote in part B of problem 2.1 comparing the numbers of male and female participants in the various activities. Now, make the same comparisons for boys and girls in your class.
This is the class data from a class in 2009
1)80% of the girls in our class like soccer, and the percentage of boys who like soccer in our class is 78.57%.
(4*100/5 & 11*100/14)
2) 26.32% of population of the class are girls and the population of the boys in our class is 73.68%.
(5*100/19 & 14*100/19)
3) 94.74% of students in our class like swimming; out of this 100% of the girls enjoy swimming and 92.86% of the boys in our class like to swim.
(18*100/19; 5*100/5 & 13*100/14)
B. Compare the statements about your class data to the statements about the national data.
1.In our class data the survey proves that the population of boys in our class is 64.29% and in national survey it proves the population of the males is 48.5%. (14/19*100) and (111555000/230406000*1000)
2. In our class data the percent of girls who love to swim is 100%, and the total percentage of women who love to swim nationally is 54.83 %.( 5/5*100) and (33640000/61353000*100)
3. In our class data, out of the students playing dodge ball, we had 25% of girls and in the national data we had 32.83% of females doing fishing. (2/8*100) and (14885000/45334000*100).
C. Write here statements comparing sports activities of all students in your class to those of
1. 12 to 17 year olds in the national survey
2. 55 to 64 year olds in the national survey
More of the kids in my class like to bike than the 12 to 17 year olds in the nation. <------ 2008
In ages 12 to 17 10874000 people enjoyed swimming and 18 out of 19 of people in our class enjoyed this sport. <----- 2009
When we add up the total number of ages 55-64 and 12-17 the added total is 42296000 and when we add up the total in our class the total number of people is 19. <-----2009
Problem 2.2 Follow Up
1. Write a paragraph telling how your class data is like the national data and how it is different. For any ways in which your class data appears to be different from the national data, give reasons why you think your class is different.
Our class data is just like the national data because they both are compared between the boys and girls. The comparison we made was as accurate as the comparison that they made for their national data. <------2009
Our class data is like the national data, because girls swim more than boys, just like the national survey and the girls also walk more than the boys like the national data. It’s different because in fishing and camping, none of the boys do that, but in the national survey, more boys do it than girls. <------ 2010 [MH’s class. ;)]
2. In your class survey, you added several activities to the five listed in the national survey. Write at least three statements comparing the numbers of boys and girls in your class who participate in these activities.
70% of boys play soccer. 2.54% girls run than boys. 50% of boys and girls play volleyball <----- 2008
In our class for the comparison statements please read the following sentences below-:
· 27713000 males in the national data like to swim and 13 males in the class data is 13
· When we add up the total number of boys and girls in the national data it is 111851000 and when we add up the total number of boys and girls in our class who like to swim it will be 18. <------ 2009
Girls play basketball as an activity more than the boys a ratio of 5 to 4.
50% of the boys read as an activity, while 100% of the girls in the class read.
Only 66.6% of the girls play football, while 83.3% of the play football. <-------------- 2010